Abstract: The present application discloses a head-mounted augmented reality (AR) apparatus, including: a head gear for being worn on a user's head; an optical module configured to provide AR display, connected to the head gear, and movable relative to the head gear; and a limit mechanism acting between the head gear and the optical module to enable the optical module to be selectively lockable in a first position or a second position relative to the head gear, in which in the first position the user when wearing the head gear is able to observe the outside scenery only through the optical module, and in the second position the user when wearing the head gear is able to observe the outside scenery completely not through the optical module. The present application also discloses a pair of AR eyeglasses similarly configured and an AR device for installation on the eyeglasses. Using the inventive technical means, the user is able to observe the real-world scene clearly and conveniently at any time.

Abstract: The present application discloses a head-mounted augmented reality (AR) apparatus, including: a head gear for being worn on a user's head; an optical module configured to provide AR display, connected to the head gear, and movable relative to the head gear; and a limit mechanism acting between the head gear and the optical module to enable the optical module to be selectively lockable in a first position or a second position relative to the head gear, in which in the first position the user when wearing the head gear is able to observe the outside scenery only through the optical module, and in the second position the user when wearing the head gear is able to observe the outside scenery completely not through the optical module. The present application also discloses a pair of AR eyeglasses similarly configured and an AR device for installation on the eyeglasses. Using the inventive technical means, the user is able to observe the real-world scene clearly and conveniently at any time.